Improved grain-drier



UNITED STATES PATENT OFFICE.

JOHN BABILLION, OF DETROIT, MICHIGAN.

IMPRovED GRAIN-Dalen.

Specification forming part of Letters PatentA No. 44,150, datedSeptember 13, 1864.

To all whom it may concern.-

Be it known that I, JOHN BABILLION, ot' Detroit, in the county of XVayneand State of Michigan, have invented a new and useful Improvement inGrain-Driers; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l represents an elevation of a section ot' my grain-drier, takenon the line y of Fig. 2; Fig. 2, an elevation of al section of the same,taken at right angles to the former section in the line w ot' Fig. 1. I

Similar letters of reference indicate like larts.

My invention consists of improvements in grain driers, part of which goto increase the efficiency ot' my grain drier patented March 3, 1863,and numbered 37,800. The casing of the grain-drier may be of anysuitable material. Its lower division contains a furnace, F, the iiuc ofwhich runs into a pipe, P, which ascends within an air-chamber, 0,through the top of the casing, at which pointI it is closed by aremovable cover. At a small distance below the upper dryingtrays thepipe P branches inward, connecting with a horizontal pipe, P', whichcommunicates with the pipes Q, running along the front and also alongthe back of the casing, to the opposife end thereof, where they connectwith a pipe,

Pf', which is intersected by the discharge-tine R at about the middle ofthat end of the casing. The air-chamber O is perforated under each trayA A and B by openings S, which are governed by sliding dampers V, whoserods extend through the front casing, as shown in Fig. 2. Air issupplied to the air-chamber through an opening, C, below.

A A represents two trays-one over the other-each made up of small traysor sections a, which are constructed of metallic leaves, with end piecesat right angles to the leaves, as seen in Fig. 1, tocomplete the trayson their sides. Strips of metal, a, one of them bent to a right angle,extend from the front to the back side ofthe casing along the front faceot the trays A, so as to form a siding to that end ot' each tray toretain the grain when the trays are in a horizontal position. Each lleaf ofthe trays A is sustained upon a rod, e, secured in the sides got' the casing, or in a separate frame set within it, upon which rods ethe sections a turn as upon centers. A rod, b, connects with each leafot' the several trays A, and this is connected to a rod, b, for eachtray A, so as the operator can, by moving it, tilt the trays A to emptythe upper one upon the one beneath, and that again upon the tra-y B,which is a tray made of one continuous iioor with raised sides, exceptat the front ot' the casing. A rod (not shown in the drawings) fastenedto one o1' its sides passes through the door i over the bin '.1, toenable the operator to tilt the tray B, which then empties itself thedoor i being tlrst removed) into the bin. rlhe tray B revolves aroundthe rod d, which sustains its weight, and whose ends pass into theendsfot' the casing. The bottoms or leaves ot' the sections c oftheupper trays may be perforated or not, as may be preferred. 1f they arenot perforated, provision must be made for the free circulation ot' airthrough the interior of the drier. The metalstrips c, which serve asends to the trays A when these are in their normal position, serve alsoas channel-ways for the free passage ot the air from below the lowersectional tray A to the top of the drier. Detlectors fr are placed atsuch points as require them in order to guide the falling grain into thetray below. The leaves of the trays A must overlap enough to cause theweight of the grain to preponderate on that side of the leaf which isnot overlapped, so that when the upon each other automatically.

The operation ot' the drier is as follows: The damp or wet grain is rstrun upon the the upper tray A, and when nearly deprived of its moistureit is dumped upon the tray below, and a new charge rum upon the tray A.When the grain upon the lower tray A is dumped upon the tray B, theupper tray is again dumped and a fresh charge is run upon it. Each trayis independent of the other, and the heat under each can be regulatedindependently by means ofthe dampers V. 1t will be seen that threecharges ot' grain are under operation at the same time.

Stirrers or rakes ot' any suitable construe` tion are to be used forstirring the grain constantly upon each tray or door. They are to grainruns upon them the leaves will close.

be driven by any convenient power. I have not shown the stirrers,becauseI make no claim for their use. The grain upon the two upper iloors ortrays may be treated with superheated steam instead of with hot air, andin practice this is to be preferred, leaving the grain on the lowerioor, B, only to be acted upon by hot air. The pipes for the conveyanceof the steam are to be conducted up within the ue O to the valve-passageS,

which is to be in that case simply a collar toA receive the steam-pipe,and the top of the drier is to be covered steam-tight with anescape-pipe and damper fixed in the cover instead of being left open, asshown in lche drawings. These changes involve no departure

